Eyeglasses.



A. A. DAY. EYEGLASSES. APPLICATION FILED MAY 24, 1907.

Patented Aug. 27, 1912.

UNITED srn rss series...

ALFRED A. DAY, OF BROCKTON, MASSACHUSETTS, ASSIGN'OR T0 JAMES HAMELTON,

OF EAST GREJIGE, NE)? JERSEY.

EYEGLASSES.

Specification of Letters Patent.

.L 9 m w- Patented Aug. 2? .1 relax.

Application filed May 24, 1907. Serial No. 375,419.

To all whom it may concern."

Be it known that I, ALFRED A. DAY, a citizen of the United States, residing at Broc'kton, in the State of Massachusetts,

5 have invented new and useful Improvements in Eyeglasses, of which the following is a specification. y

My invention relates to eyeglasses, and

more particularly to means for securing the bow spring or bridge to the lens. Heretofore, in glasses of the pince-nez type, great trouble has been experienced 1n securing the end of the guard to thelens clip or frame in such a manner as to obtain the necessary rigidity and at the same time permit of ready'removal for repairs. It has been found that the usual stud screw generally employed to hold the parts in position, is inadequate, as the guards and bridge frequently work loose.

It is the primary object of this invention, therefore, to provide a means for securing the parts together which shall be simple, strong, and rigid, while readily detachable.

With the above and other objects in view, my invention consists of the construction hereinafter described, and illustrated in the accompanying drawings, in which Figure 1 is a fragmentary perspective view of my improved guard, bridge, and lens clip, assembled. Fig. 2 is an end view of the clip alone. Fig. 3 is an end view of the clip, with bridge in position. Fig. 4 is an end view of the clip with both bridge and guard in position, and showing the holding screw. Fig. 5 is a section on line 5-5, Fig. 4. Fig. 6 is a perspective view illustrating a modified form of bridge. Fig. 7 is a view somewhat similar to Fig. 5, but showing the parts separated. Fig. 8 is a perspective view of the improved lens clip. Fig. 9 is a view similar to Fig. 2, illustrating a. still further modification.

Referring to the drawings in detail, 1, 1 represent the lenses. To each of them is secured a lens clip, said clip comprising the frame 2, the ears, 3, through which rivets pass, and the post 4:, carrying at its end the box 5.

As shown in Figs. 7 and 8, the end face of the box 5 is formed at one side with a notch and at its other side with an ofiset or eccehtrically disposed channel 7. One

' wall of the notch 15 the lateral flange 9;

5 and the notch being of less depth than the offset channel, a shoulder 8 is formed near the center of the box. 'One wall of the channel is centrally disposed and centrally of the box there is formed a threaded socket 7. The end 12 of the nose'guard 12 is adapted to fit between the lateral flange 9 and the opposite wall of the box 5, the latter wall forming a wall of the channel. 7.

This channel, it will be observed is offset from the center of the box, and forms a seat for the end of the bow spring, hereinafter described.

6 represents the bridge or bow spring in Fig. 1. As here shown it is provided with a plurality of horizontallyv extending coils, 10, which give it resiliency.

In Fig. (5 I have shown a. slightly diiierent form of spring 6, the same being formed with vertically extending coils, 10, such coils being disposed behind the post 4 and box so as to be practically invisible when viewed from the front. In both forms, however, it will be noted that the relation of the coils to the bridge is such that the forcing apart of the guards, (hereinafter described) for the purpose of adjusting them upon the nose of the user tends to cause said coils to tighten. that is, to become of smaller diameter. Thus their power of resistance increases as the force is applied to them.

The ends of the bridge are formed with notches, 11, which lie adjacent to and form a continuation of the socket 7. As shown in Fig. 6, the ends of the bow spring are bent sharply upward, and enter the box 5 from below. This bridge or how spring may he formed either of elliptical or rectangular stock, as desired.

12 represents the guards, and as shown,

they are preferably provided with upwardly and rearwardly extending p0 trons 1'2" to portion, ]11Sl3 inserted, and screwed up tightly, thus firmly 2 A lens stud consisting of a post and a binding the parts together as shown in box which is formed at one side with a chan- Fig. It will be seen, therefore, that, by nel offset with respect to the center of the reason of the shoulder 8, cooperating with I box; one of the side walls of said channel the semicircular'notch 11, the bridge 6 will being centrally disposed in the box and the be rigidly held against movement, While the latter being formed with a screw-threaded guard is edequatel secured by means of depression. the flanges 9. Tiese flanges constitute i 3. Eyeglasses having a lens stud consistmeans for holding the parts against rotaing of a post and a box, the latter being tion. formed at one side with a, channel offset In Fig. 9 I have shown a slightly different with. respect to the center of the box; and means for preventing rotation of the parts. a spring bridge formed with a, coil an end This means consists of a pair of flanges 12 of which fastened securely in said clumformed on the guard 12 and which emnel. brace the box 5 The flanges 9 are here In testimony whereof I have hereunto set omitted. I my hand in presence of two subscribing wit- What I claim is n nesses. 1. A lens stud consisting of a post and a ALFRED A. DAY. box which is formed at one side with a lVitnesses:

channel offset with respect to the center of the box.

J 011x I-I. BA'u'rLE'n', ARTHUR L. RICH.

Copiel 0! this patent may be obtained for five cents each, by addressing the "Commissioner .of Yatents. Washington, D. C." 

